DE3721667A1 - Verfahren zur herstellung von natriumsulfat - Google Patents
Verfahren zur herstellung von natriumsulfatInfo
- Publication number
- DE3721667A1 DE3721667A1 DE19873721667 DE3721667A DE3721667A1 DE 3721667 A1 DE3721667 A1 DE 3721667A1 DE 19873721667 DE19873721667 DE 19873721667 DE 3721667 A DE3721667 A DE 3721667A DE 3721667 A1 DE3721667 A1 DE 3721667A1
- Authority
- DE
- Germany
- Prior art keywords
- water
- salt
- glauber
- sodium sulphate
- sodium sulfate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 title claims abstract description 42
- 229910052938 sodium sulfate Inorganic materials 0.000 title claims abstract description 32
- 235000011152 sodium sulphate Nutrition 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 21
- 239000011707 mineral Substances 0.000 claims abstract description 21
- 239000010446 mirabilite Substances 0.000 claims abstract description 20
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000000243 solution Substances 0.000 claims abstract description 16
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 12
- GYZGFUUDAQXRBT-UHFFFAOYSA-J calcium;disodium;disulfate Chemical compound [Na+].[Na+].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GYZGFUUDAQXRBT-UHFFFAOYSA-J 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000007864 aqueous solution Substances 0.000 claims abstract description 5
- 238000002425 crystallisation Methods 0.000 claims abstract description 3
- WBHQBSYUUJJSRZ-UHFFFAOYSA-N sodium;sulfuric acid Chemical compound [H+].[H+].[Na+].[O-]S([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000012452 mother liquor Substances 0.000 claims abstract 3
- 239000000126 substance Substances 0.000 claims description 9
- 229920000867 polyelectrolyte Polymers 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- -1 magnesium aluminum silicates Chemical class 0.000 claims description 3
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 2
- 238000005360 mashing Methods 0.000 claims 2
- 238000005119 centrifugation Methods 0.000 claims 1
- 238000007796 conventional method Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 6
- 238000005189 flocculation Methods 0.000 abstract description 5
- 230000016615 flocculation Effects 0.000 abstract description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 235000012211 aluminium silicate Nutrition 0.000 abstract 1
- 239000001175 calcium sulphate Substances 0.000 abstract 1
- 235000011132 calcium sulphate Nutrition 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 9
- 239000011734 sodium Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000007832 Na2SO4 Substances 0.000 description 1
- 229910052925 anhydrite Inorganic materials 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 239000012045 crude solution Substances 0.000 description 1
- 150000004691 decahydrates Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873721667 DE3721667A1 (de) | 1987-06-26 | 1987-06-26 | Verfahren zur herstellung von natriumsulfat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873721667 DE3721667A1 (de) | 1987-06-26 | 1987-06-26 | Verfahren zur herstellung von natriumsulfat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3721667A1 true DE3721667A1 (de) | 1989-01-05 |
| DE3721667C2 DE3721667C2 (enrdf_load_stackoverflow) | 1989-06-15 |
Family
ID=6330631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19873721667 Granted DE3721667A1 (de) | 1987-06-26 | 1987-06-26 | Verfahren zur herstellung von natriumsulfat |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3721667A1 (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168469C2 (ru) * | 1997-08-26 | 2001-06-10 | Институт химии и химико-металлургических процессов СО РАН | Способ очистки технологических и сбросных содовых растворов от сульфата натрия |
| CN103100257A (zh) * | 2013-02-06 | 2013-05-15 | 四川省洪雅青衣江元明粉有限公司 | 一种硝水悬浮物过滤系统 |
| US20190263668A1 (en) * | 2016-07-27 | 2019-08-29 | Ocp Sa | Process for producing sodium sulphate from phosphogypsum |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2333138A (en) * | 1940-10-19 | 1943-11-02 | Charles D Adams | Recovery of sodium sulphate |
-
1987
- 1987-06-26 DE DE19873721667 patent/DE3721667A1/de active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2333138A (en) * | 1940-10-19 | 1943-11-02 | Charles D Adams | Recovery of sodium sulphate |
Non-Patent Citations (1)
| Title |
|---|
| ULLMANN: Encyklopädie d. techn. Chemie, 1979, Bd. 17, S. 216/7 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2168469C2 (ru) * | 1997-08-26 | 2001-06-10 | Институт химии и химико-металлургических процессов СО РАН | Способ очистки технологических и сбросных содовых растворов от сульфата натрия |
| CN103100257A (zh) * | 2013-02-06 | 2013-05-15 | 四川省洪雅青衣江元明粉有限公司 | 一种硝水悬浮物过滤系统 |
| US20190263668A1 (en) * | 2016-07-27 | 2019-08-29 | Ocp Sa | Process for producing sodium sulphate from phosphogypsum |
| US10689261B2 (en) * | 2016-07-27 | 2020-06-23 | Ocp Sa | Process for producing sodium sulphate from phosphogypsum |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3721667C2 (enrdf_load_stackoverflow) | 1989-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |